There are no official patch notes available for update version 1.64 but the experimental update had received patch notes, which you can view in detail below.

Updated with official patch notes

Fixed an issue where items could fail to display in the Quicksilver shop.

Fixed an issue where Community Research missions could be given deadlines in the distant future.

Fixed an issue where players could get trapped when getting out of some ship types.

As a temporary measure while investigating a crash on Xbox One X only, we have disabled terrain tessellation.

Fixed an issue where players could fail to be given the blueprints for Hydroponic Trays.

Fixed an issue where players could fail to be given the blueprints for the plants required by the Farmer.

Fixed an issue where players could fail to learn the Circuit Board blueprint at the correct time.

Fixed an issue where NPC missions might return to a building that had no NPCs in them.

Fixed an issue where players could fail to learn the Glass blueprint at the correct time.

Fixed an issue where players could fail to learn the Frigate Fuel blueprints at the correct time.

Missions from the Mission Board or planetary NPCs will now display their mission title on the Galaxy Map instead of their current objective, to help manage destinations when multiple missions are active.
Tessellation can now be enabled in the graphics options on PC.

No Man’s Sky Update Version 1.64 is downloadable now on the PS4, Xbox One, and PC.